<?php
		echo "<-- Variables GET --></br>";
		foreach ($_GET as $indice => $valor)
		{
			echo "$indice: $valor</br>";
		}
		echo "</br><-- Variables POST --></br>";
		foreach ($_POST as $indice => $valor)
		{
			echo "$indice: $valor</br>";
		}
		echo "</br><-- Variables COOKIES --></br>";
		foreach ($_COOKIE as $indice => $valor)
		{
			echo "$indice: $valor</br>";
		}
		echo "</br><-- Variables SESSION --></br>";
		foreach ($_SESSION as $indice => $valor)
		{
			echo "$indice: $valor</br>";
		}
		echo "</br><-- Variables SERVER --></br>";
		foreach ($_SERVER as $indice => $valor)
		{
			echo "$indice: $valor</br>";
		}
?>